Frequencies for first 10,000 rows of opthlmc_srgy_srvc_cd variable in pos2015 d

  Services: |
 Ophthalmic |
    Surgery |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,580       85.80       85.80
          0 |      1,119       11.19       96.99
          1 |        221        2.21       99.20
          2 |         35        0.35       99.55
          3 |         45        0.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016